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STATIC STABILITY IN THE ELECTRIC POWER SYSTEM

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The article considers the provision of static stability in the electric power system. Static and aperiodic (sliding) stability and static periodic (vibration) stability of synchronous generators, which are simultaneously included in the electrical network, are presented. It is shown that one of the effective means of increasing static stability is the use of an automatic excitation regulator of strong action generators. It is noted that the installation of reactive power compensation devices allows maintaining the voltage at the points of the network, which favorably affects the static stability. Recommendations for increasing the static stability limit of the electrical power system are given. In addition, it is presented that the static stability reserve should be at least 20% for power transmission in normal mode, and the static stability reserve for power transmission in post-emergency mode should be at least 8%. The article also presents a graph of stator current changes and rotor angle deviations during synchronous generator selfvibration, on the incorrect setting of automatic excitation regulator during simulation in Matlab Simulink environment.

AUTHORS

A.Bekishev

TDTU

S.Urakov

TDTU

Tags

# static aperiodic stability of# static periodic (oscillatory)# self-vibration# steady-state (synchronous) gen

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